Question about 1999 Ford Taurus

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Cooling fans always on in any heat setting

The cooling fans both run whenever I turn to any heat settings except for the vent setting. could it be the contro switch on the cotrol panel. I know they should run in defrost mode but not the other heat settings

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  • Ford Master
  • 975 Answers

You are right,seems like it must be the control switch to me

Posted on Nov 17, 2013

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Posted on Jan 02, 2017

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SOURCE: 97 Ford Econoline air conditioning and vent settings blowing hot

I know from experience that if the coolant is to low ( not just the freon levels in the compresor but the antifreeze/coolant level as well) the AC system will not cool and will blow hot. Check the coolant Antifreeze and freon levels, even with the Coolant being a little low my 1998 Ford E150 Van will blow hot. After you have ruled out of these possibilities and the chance it is the thermostat most likely the problem is what Ford calls the "Flap" it controls the air flow through the vent system when you switch from Heat to AC. When the Flap is working it closes off one systems air flow so as to not interfere with the current climate selection.

Posted on Apr 17, 2009

silverado195
  • 1 Answer

SOURCE: temp control switch does not regulate temp i get heat on all settings except max ac

yes it is the switch. You have to pull the radio then the outer trim panel then the eltronic control assembly it is only a 30 .00 part but a pain to do

Posted on Mar 27, 2013

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1 Answer

My heat works on all settings whenever it comes on, but it can take up to an hour for the fan to kick in.


If the engine itself is running on the hot side, that's could be a thermostat/ heater control valve. If the engine itself is running up to par (cooling system, fans etc) sounds like a heater control valve issue.) Inside fan works well, no odd vent smell (rotten eggs). Heater control valve. Good luck Frank M

Feb 15, 2016 | Cars & Trucks

Tip

Ford Explorer clicking- no heat


Blend door actuator failure is a common occurrence on many older Explorers. The clicking noise is actually caused by a stripped nylon gear constantly attempting to hold open the blend door which mixes the hot and cold air sent to registers on dash. As long as the temperature control setting is in the heat range this actuator will hold the door which wants to be normally closed, open. Air flow when the fan is on helps to hold the door open relieving stress on the gear. However whenever the fan or engine are off and the temp control is in the heat range the small gear must hold the door on its own which eventually leads to failure. My tip is to always return the temperature control to the cooling position whenever heat is not needed or truck is turned off. If you are reading this too late the link below will provide you with step by step instructions to replace actuator. I would recommend an OEM replacement part, it makes it easier to orientate when installing the new one. Did this myself and all went well.



http://redhouseon7th.com/redhouse/howto/2003FordExplorerBlendDoor/

on Mar 27, 2015 | Cars & Trucks

Tip

Tips for operating Air conditioning system on Toyota Hilux and someother...


To cool off your Toyota after it has been parked in the hot sun, drive with the windows open for a few minutes. This vents the hot air, allowing the air conditioning to cool the interior more quickly.

Make sure the air intake grilles in front of the windshield are not blocked (by leaves or snow, for example).

On humid, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

Keep the area under the front seats clear to allow air to circulate throughout the vehicle.

On cold days, set the fan speed to high for a minute to help clear the intake ducts of snow or moisture. This can reduce the amount of fogging on the windows.

When driving on dusty roads, close all windows. If dust thrown up b the vehicle is still drawn into the vehicle after closing the windows, it is recommended that the in intake be set to FRESH and the fan speed to any setting except "OFF".

If following another vehicle on a dusty road, or driving in windy and dusty conditions, it is recommended that the air intake be temporarily set to RECIRCULATE, which will close off the outside passage and prevent outside air and dust from entering the vehicle interior.

HEATING

For best results, set controls to;
Fan speed ---- Any setting except "OFF"
Temperature----Towards WARM (red zone)
Air intake ---- FRESH (outside air)
Air flow ---- FLOOR
Air conditioning ---- OFF

For quick heating, select recirculated air for a few minutes. To keep the windows from fogging, select fresh after the vehicle has been warmed.

Press the "A/C" button on for dehumidified heating.

Choose floor/windshield air flow to heat the voltage interior while defrosting or defogging the windshield.

AIR CONDITIONING

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

For quick cooling, move the air intake selector to recirculate for a few minutes.

VENTILATION

For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
Air intake --- (outside air)
Air flow --- PANEL
Air conditioning --- ON

DEFOGGING

The inside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone) to heat; COLD (blue zone) to cool
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- ON

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

On humid days, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

DEFROSTING

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- OFF

To heat the vehicle interior while defrosting the windshield, choose floor/windshield air flow.

on Feb 14, 2011 | Toyota Pickup Cars & Trucks

1 Answer

What is difference between on an auto on thermostate


I'm not sure exactly how this applies specifically in a car, but on a home heating and cooling (air conditioning) thermostat, it is often associated with the fan or blower setting.

If for a system fan:

"Auto On" setting in a heating / cooling system would start the fan when the temperature climbed above or dropped below the setting you on the thermostat and start the heat or cooling source. Once the thermometer indicates the desired temperature had been reached, the heating / cooling source would be stopped and the fan would turn off.

"On" would run the fan all the time, regardless if the thermostat tired to start the heat or cooling source. This would result in constant circulation of the air in the space(s) and tend to keep warm or cool spots (rooms) from being created.
25986675-yg02wefbryhylvrzhsbt44nn-2-0.jpg

Nov 30, 2015 | Cars & Trucks

1 Answer

Cooling fan runs all time


If you mean all the time when the ignition is on, this may be correct, depending on how you have the climate controls set. Anytime you have the climate control in an A/C mode, or whenever the defroster is on (look for the squiggly lines icon on the control), the A/C compressor runs and thus so will the cooling fan. To be sure, place the climate control in the heat mode with the air directed to the floor vents, As long as the engine is at normal temp, then cooling fan should be off in this condition.

Nov 30, 2013 | Chevrolet Cavalier Cars & Trucks

Tip

How to keep your car below boiling poimt. ALL CARS!!!


most times in the heat your cars cooling system can over load, to stop overheating, always check your vehicles radiator water never the overflow resevoir.

always make sure your top radiator hose is hot, when running and your thermo fans come on automatically when on average heat temp. (half way).

make sure you cannot hear any noises ( clunking, grinding etc) from the waterpump, and always make sure you dont see water leaking from the vehicle ( except when air con is on).

if you do spring a leak always get it repaired ASAP as delay may further damge your cooling system, eg, head gasket and or head, effects may be warped, bent or cracked cylinder head.

always check your radiator and top up if needed at least ONCE A WEEK to avoid damage. and keep your overflow resevoir kept on the correct level.

cooling system failure can produce a big effect on your engines running capability and also your wallet!!!!!

keep your car cool in the heat!!

and also note, coolant or anti freeze does not keep your car cool, it is a corrosion inhibitor and only prevents corrosion and muck in and around your cooling system, your thermo fans keep your car cool!!!!

on Dec 04, 2009 | Acura CL Cars & Trucks

2 Answers

NO HEAT STUCK ON AC HEAR CLICKING IN CENTER CONSOLE


Air Temperature Control Blend Door Failure No Heat or no AC (dependes on where door sticks)

In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.

Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.

Nov 05, 2012 | Cars & Trucks

1 Answer

Heat & air in our 06 Dodge Caravan won't blow out at the floor


unfortunatly yes the vent arm must be brokin and probaly is the cable going to it most of them u can access that by taking the cover where vent turn is located and just have a boo and see if its off or not

Dec 08, 2009 | 2006 Dodge Caravan

1 Answer

No air/heat from Vents in 89 delta 88


1996 olds lss .no heat from vents which seem blocked.The fan runs

Dec 19, 2008 | 1989 Oldsmobile Delta 88

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2000 Dodge Caravan air conditioner problems


heating and cooling fans are generally one and the same. changing freon doesn't always fix the problem... did you have the system pressure checked for leaks first.

Second determine if the vents are opening properly (switching from heat to cooling) basically when you change to cool it closes air access to the heater core.

Robert

Jul 06, 2008 | 2000 Dodge Caravan

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